AGGREGATION OF AZA CROWN ETHERS BY METALATION - SYNTHESIS AND CRYSTAL-STRUCTURE OF 1-LITHIO-1,7-DIAZA[12]CROWN-4 - THE 1ST LITHIATED CROWN-ETHER

D  BARR; D J  BERRISFORD; L  MENDEZ; A M Z  SLAWIN; R  SNAITH; J F  STODDART; D J  WILLIAMS; D S  WRIGHT

AGGREGATION OF AZA CROWN ETHERS BY METALATION - SYNTHESIS AND CRYSTAL-STRUCTURE OF 1-LITHIO-1,7-DIAZA[12]CROWN-4 - THE 1ST LITHIATED CROWN-ETHER

D BARR, D J BERRISFORD, L MENDEZ, A M Z SLAWIN, R SNAITH, J F STODDART, D J WILLIAMS, D S WRIGHT

Research output: Contribution to journal › Comment/debate › peer-review

13 Citations (Scopus)

Abstract

Deprotonation of diaza[12]crown-4 with nBuLi results in dimerization. This is shown by the X-ray structure analysis, according to which the product obtained is 1. Each Li ion is five-coordinate and lies appreciably (ca. 0.94 angstrom) outside the plane of the crown ether. The experimentally found structural changes agree with those found for a model system by MNDO calculation. The Li ions in 1 are well saturated electronically but still accessible to reagents.

Original language	English
Pages (from-to)	82-84
Number of pages	3
Journal	Angewandte Chemie International Edition in English
Volume	30
Issue number	1
Publication status	Published - Jan 1991

Keywords

MOLECULAR-STRUCTURE
ALUMINUM ATOMS
COORDINATION
COMPLEX
EXAMPLE
AMINE

Cite this

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title = "AGGREGATION OF AZA CROWN ETHERS BY METALATION - SYNTHESIS AND CRYSTAL-STRUCTURE OF 1-LITHIO-1,7-DIAZA[12]CROWN-4 - THE 1ST LITHIATED CROWN-ETHER",

abstract = "Deprotonation of diaza[12]crown-4 with nBuLi results in dimerization. This is shown by the X-ray structure analysis, according to which the product obtained is 1. Each Li ion is five-coordinate and lies appreciably (ca. 0.94 angstrom) outside the plane of the crown ether. The experimentally found structural changes agree with those found for a model system by MNDO calculation. The Li ions in 1 are well saturated electronically but still accessible to reagents.",

keywords = "MOLECULAR-STRUCTURE, ALUMINUM ATOMS, COORDINATION, COMPLEX, EXAMPLE, AMINE",

author = "D BARR and BERRISFORD, {D J} and L MENDEZ and SLAWIN, {A M Z} and R SNAITH and STODDART, {J F} and WILLIAMS, {D J} and WRIGHT, {D S}",

year = "1991",

month = jan,

language = "English",

volume = "30",

pages = "82--84",

journal = "Angewandte Chemie International Edition in English",

issn = "0570-0833",

publisher = "Wiley-VCH, Weinheim",

number = "1",

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TY - JOUR

T1 - AGGREGATION OF AZA CROWN ETHERS BY METALATION - SYNTHESIS AND CRYSTAL-STRUCTURE OF 1-LITHIO-1,7-DIAZA[12]CROWN-4 - THE 1ST LITHIATED CROWN-ETHER

AU - BARR, D

AU - BERRISFORD, D J

AU - MENDEZ, L

AU - SLAWIN, A M Z

AU - SNAITH, R

AU - STODDART, J F

AU - WILLIAMS, D J

AU - WRIGHT, D S

PY - 1991/1

Y1 - 1991/1

N2 - Deprotonation of diaza[12]crown-4 with nBuLi results in dimerization. This is shown by the X-ray structure analysis, according to which the product obtained is 1. Each Li ion is five-coordinate and lies appreciably (ca. 0.94 angstrom) outside the plane of the crown ether. The experimentally found structural changes agree with those found for a model system by MNDO calculation. The Li ions in 1 are well saturated electronically but still accessible to reagents.

AB - Deprotonation of diaza[12]crown-4 with nBuLi results in dimerization. This is shown by the X-ray structure analysis, according to which the product obtained is 1. Each Li ion is five-coordinate and lies appreciably (ca. 0.94 angstrom) outside the plane of the crown ether. The experimentally found structural changes agree with those found for a model system by MNDO calculation. The Li ions in 1 are well saturated electronically but still accessible to reagents.

KW - MOLECULAR-STRUCTURE

KW - ALUMINUM ATOMS

KW - COORDINATION

KW - COMPLEX

KW - EXAMPLE

KW - AMINE

M3 - Comment/debate

SN - 0570-0833

VL - 30

SP - 82

EP - 84

JO - Angewandte Chemie International Edition in English

JF - Angewandte Chemie International Edition in English

IS - 1

ER -

AGGREGATION OF AZA CROWN ETHERS BY METALATION - SYNTHESIS AND CRYSTAL-STRUCTURE OF 1-LITHIO-1,7-DIAZA[12]CROWN-4 - THE 1ST LITHIATED CROWN-ETHER

Abstract

Keywords

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